Monday, July6, 2020
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Marine Weather and Tides
St. Augustine Beach, FL

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:29AMSunset 8:30PM Monday July 6, 2020 6:56 PM EDT (22:56 UTC) Moonrise 9:04PMMoonset 6:44AM Illumination 98% Phase: Waning Gibbous; Moon at 16 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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AMZ454 Expires:202007070315;;423077 Fzus52 Kjax 061915 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 315 Pm Edt Mon Jul 6 2020 Atlantic Coastal Waters From Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm. Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves, Along With The Occasional Height Of The Average Highest 1/10 Of The Waves. Amz450-452-454-070315- Coastal Waters From Altamaha Sound To Fernandina Beach Fl Out 20 Nm- Coastal Waters From Fernandina Beach To St. Augustine Fl Out 20 Nm- Coastal Waters From St. Augustine To Flagler Beach Fl Out 20 Nm- 315 Pm Edt Mon Jul 6 2020
Tonight..South southwest winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 4 seconds. Inland waters a light chop. Showers likely and a chance of Thunderstorms.
Tuesday..South winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 9 seconds becoming 4 seconds in the afternoon. Inland waters a moderate chop. Showers and a chance of Thunderstorms.
Tuesday night..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 4 seconds increasing to 9 seconds after midnight. Inland waters a light chop. Showers likely and a chance of Thunderstorms.
Wednesday..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop. Showers and a chance of Thunderstorms.
Wednesday night..West southwest winds around 10 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Thursday..Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. Showers likely and a chance of Thunderstorms.
Thursday night..West southwest winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Friday..South southwest winds 5 to 10 knots. Seas 2 to 3 feet. Showers likely and a chance of Thunderstorms.
Friday night..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Saturday..South southwest winds 5 to 10 knots. Seas 2 to 3 feet. Showers and Thunderstorms likely.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 315 Pm Edt Mon Jul 6 2020
Synopsis.. High pressure will be to the east of the region through mid week, as an area of low pressure tracks eastward across the gulf coast states, then off the carolina coast late Wednesday into Thursday. This low is then expected to track northeast up the coast. The national hurricane center is Monitoring this low for possible tropical development. The region will be between high pressure to the southeast and a trough of low pressure that will extend northeast to southwest across the southeastern us into the weekend.
Gulf stream.. The approximate location of the west wall of the gulf stream as of jul 02, 2020 at 1200 utc... 67 nautical miles east of flagler beach. 74 nautical miles east of saint augustine beach. 85 nautical miles east of jacksonville beach. 105 nautical miles east of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near St. Augustine Beach, FL
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location: 29.87, -81.26     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 061937 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 337 PM EDT Mon Jul 6 2020

Short Term. /through Friday/ .

Low pressure will be over the gulf coast region this afternoon, with a trough extend east from it across southern GA. Flow around this low will bring moisture off the gulf. While much of the energy available for storms this afternoon has past with the main line of storms which moved offshore. Any breaks that occur in the clouds will result in additional instability, helping to generate more convective activity. A few strong storms will still be possible with gusty winds, but the main feature of storms for the remainder of this afternoon into evening will be the potential for locally heavy rainfall.

Similar weather as Today expected for Tuesday, as the low slowly moves into GA. The low is then anticipated to move toward the Carolina coast Wednesday, then begin traveling up the east coast Thursday. Another day with higher than usual convective chances expected Wednesday, due to the proximity of the low, with a little lower chance for Thursday, as some drier air advects in behind the exiting low but storms still likely.

A trough of low pressure at the surface is expected to extend northeast to southwest across the southeast US coastal states Friday. Showers and thunderstorms will continue to be likely into Friday, due to the combination of diurnal heating and this surface troughing.

Temperatures will trend near to a little above normal this period.

Long Term. /Friday night through Monday/ .

A trough of low pressure will extend across the southeastern US states throughout this period helping to provide convergence. The region will also be under a 500 mb trough which will produce instability, in addition to the instability from diurnal heating. The combination of these features will keep mainly day time showers and storms likely through this period.

Temperatures will trend above normal this period.

Marine.

High pressure will be to the east of the region through mid week, as an area of low pressure tracks eastward across the gulf coast states, then off the Carolina coast late Wednesday into Thursday. This low is then expected to track northeast up the coast. The National Hurricane Center is monitoring this low for possible tropical development. The region will be between high pressure to the southeast and a trough of low pressure that will extend northeast to southwest across the southeastern US into the weekend.

Rip Currents: SE GA: Moderate Today, Low Tuesday NE FL: Moderate through Tuesday

PRELIMINARY POINT TEMPS/POPS.

AMG 73 86 72 89 73 / 40 90 60 80 20 SSI 77 86 75 89 76 / 60 90 60 80 30 JAX 74 90 75 91 75 / 60 80 50 80 30 SGJ 75 90 75 91 75 / 60 60 50 80 30 GNV 74 89 73 89 73 / 20 60 50 70 20 OCF 74 89 74 90 75 / 20 60 50 60 30

JAX WATCHES/WARNINGS/ADVISORIES. FL . None. GA . None. AM . None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAUF1 - St. Augustine, FL 1 mi56 min SSE 12 G 13 78°F 83°F1017.6 hPa (-0.6)74°F
41117 13 mi30 min 83°F2 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 15 mi71 min SSE 5.1 78°F 1019 hPa74°F
LTJF1 37 mi56 min 81°F 75°F
JXUF1 38 mi56 min 86°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 38 mi56 min SSE 4.1 G 8.9 80°F 84°F1016.9 hPa (-1.0)
BLIF1 39 mi56 min S 6 G 8 81°F 1017.4 hPa (-1.0)81°F
DMSF1 39 mi56 min 85°F
NFDF1 41 mi56 min S 5.1 G 8 76°F 76°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Northeast Florida Regional Airport, FL8 mi60 minSSE 710.00 miMostly Cloudy78°F73°F87%1017.4 hPa

Link to 5 minute data for KSGJ

Wind History from SGJ (wind in knots)
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Last 24hrS11S13S8S8S7S6--S6SW4SW3SW5SW5S4SW5SW8S6S5S7SE13NW6CalmSE7SE6S7
1 day agoSW33CalmSW4CalmCalmS5S4S3S4SW3CalmSW3S3SW6SW7S6SW8SW84SW8W9S3SE7
2 days agoCalmNW5NW5NW5SW3CalmW4NW3W3W5W3NW4NW3W3NW3CalmE5E9E8E7E7SE7SW7W6

Tide / Current Tables for St. Augustine Beach, Atlantic Ocean, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Crescent Beach, Matanzas River, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
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wmap_A
GEOS Local Image of Southeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (18,4,5,8)
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Ground Weather Radar Station Jacksonville, FL
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.